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<< Click to Display Table of Contents >> GAMMAINV (percentiles of the gamma distribution) |
Note: GAMMAINV is supplemented by the new identical function GAMMA.INV, which is available in newer versions of Microsoft Excel (2010 or later).
Syntax:
GAMMAINV(Probability, Alpha, Beta)
Description:
This returns the percentiles of the gamma distribution.
Probability is the given probability from the gamma distribution. The values must be within the range 0 to 1.
Alpha and Beta are shape parameters of the function. They both have to be greater than zero.
Note:
The result of this function is calculated using an iteration method. If, after 100 iterations, PlanMaker does not find a result that deviates less than ±3x10^-7 from Probability, it displays the error value #N/A and cancels the approximation.
See also: